Home
Class 12
PHYSICS
Force acting on a particle of mass m mov...

Force acting on a particle of mass m moving in straight line varies with the velocity of the particle as `F=K//V` K is constant then speed of the particle in time t

A

`sqrt((kt)/(m))`

B

`sqrt((2kt)/(m))`

C

`2sqrt((kt)/(m))`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B
`(1)/(2)mv^(2)=`power `t=Fvt=kt`
`thereforeV=sqrt((2kt)/(m))`
Promotional Banner

Topper's Solved these Questions

  • TEST PAPERS

    FIITJEE|Exercise PHYSICS|747 Videos

  • SIMPLE HARMONIC MOTION

    FIITJEE|Exercise Assignment Problems (Objective) (Level-II)|20 Videos

  • WORK, ENERGY AND POWER

    FIITJEE|Exercise COMPREHENSIONS ( Comprehension-II)|5 Videos

Similar Questions

Explore conceptually related problems

Forces acting on a particle moving in a straight line varies with the velocity of the particle as F = (alpha)/(upsilon) where alpha is constant. The work done by this force in time interval Delta t is :

The power supplied by a force acting on a particle moving in a straight line is constant. The velocity of the particle varies with displacement as x^(1/K) . Find the value of K.

Velocity-time graph of a particle moving in a straight line is shown in the figure. Mass of the particle is 2 kg. Work done by all the forces acting on the particle in time interval t = 0 to t = 10 sec is

A time varying force, F=2t is acting on a particle of mass 2kg moving along x-axis. velocity of the particle is 4m//s along negative x-axis at time t=0 . Find the velocity of the particle at the end of 4s.

The power supplied by a force acting on a particle moving in a straight line is constant. The velocity of the particle varies with the displacement x as :

The velocity-time graph of a particle moving in a straight line is shown in figure. The mass of the particle is 2kg . Work done by all the forces acting on the particle in time interval between t=0 to t=10s is

The displacement of a particle of mass 2kg moving in a straight line varies with times as x = (2t^(3)+2)m . Impulse of the force acting on the particle over a time interval between t = 0 and t = 1 s is

Power of the only force acting on a particle of mass m=1 kg moving in straight line depends on its velocity as P=v^(2) where v is in m/s and P is in watt. If initial velocity of the particle is 1m/s, then the displacement of the particle in ln2 second will be :

Kinetic energy of a particle moving in a straight line varies with time t as K = 4t^(2) . The force acting on the particle

FIITJEE-TEST PAPERS-PHYSICS
  1. A cylindrical conductor of length l and inner radius R(1) and outer r...

    Text Solution

    |

  2. A particle has a rectilinear motion and the figure gives its displacem...

    Text Solution

    |

  3. Force acting on a particle of mass m moving in straight line varies wi...

    Text Solution

    |

  4. The current in a wire varies with time according to the equation l=4+2...

    Text Solution

    |

  5. if rho is the density of the meterial of a wire and sigma is the break...

    Text Solution

    |

  6. A sphere kept on a rough inclined plane is in equilibrium by a string ...

    Text Solution

    |

  7. A rectangular loop with a sliding connector of length l is located in ...

    Text Solution

    |

  8. A, B, C, D, P, and Q are points in a uniform electric field. The poten...

    Text Solution

    |

  9. A concave mirror of focal length 15 cm is placed in water of refrectiv...

    Text Solution

    |

  10. An ideal gas expands according to the law PV^(3//2)=constant We conclu...

    Text Solution

    |

  11. A tank has a hole at its bottom. The time needed to empty the tank fro...

    Text Solution

    |

  12. A source of sound emitting a note of frequency 200 Hz moves towards an...

    Text Solution

    |

  13. A lake is covered with ince 2 cm thick.t he temperature of ambient air...

    Text Solution

    |

  14. A cylindrical hall has a horizontal smooth floor. A ball is projected ...

    Text Solution

    |

  15. A solid cylinder of mass M is attached to the spring by means of a fri...

    Text Solution

    |

  16. Two blocks A and B of mass 2 m and m respectively are connected to a m...

    Text Solution

    |

  17. Two small balls A and B, each of mass m, are joined rigidly at the end...

    Text Solution

    |

  18. A rod of negligible heat capacity has a length of 50 cm, area of cross...

    Text Solution

    |

  19. Both the strings shown in figure are mode of same material and have sa...

    Text Solution

    |

  20. Excess pressure inside one soap bubble is four times that of other. Th...

    Text Solution

    |